Work around the removed typing.ByteString (Python 3.14+)

indygreg · Feb 20, 2025 · 21f2937 · 21f2937
1 parent 9eb5694
commit 21f2937
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Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/zstandard/__init__.py b/zstandard/__init__.py
@@ -18,7 +18,10 @@
 import io
 import os
 import platform
-from typing import ByteString
+from typing import Union
+
+# ByteString has been removed from typing in Python 3.14
+ByteString = Union[bytes, bytearray, memoryview]
 
 # Some Python implementations don't support C extensions. That's why we have
 # a CFFI implementation in the first place. The code here import one of our

diff --git a/zstandard/__init__.pyi b/zstandard/__init__.pyi
@@ -8,7 +8,6 @@ import os
 from typing import (
     IO,
     BinaryIO,
-    ByteString,
     Generator,
     Iterable,
     List,
@@ -18,6 +17,9 @@ from typing import (
     Union,
 )
 
+# ByteString has been removed from typing in Python 3.14
+ByteString: Union[bytes, bytearray, memoryview]
+
 FLUSH_BLOCK: int
 FLUSH_FRAME: int